Can a person with a shellfish allergy have a reaction to sea salt?

How it works. You develop allergies to the protein of a specific product. The protein triggering a shellfish allergy, peanut allergy, bee sting allergy, etc. are all specific to their origin & sensitivity. Sea salt is just a form of the inert, non-protein material composed of sodium and chloride molecules. It does not have potential to trigger an allergic response.